U.S. patent application number 12/779908 was filed with the patent office on 2011-04-07 for data sending and receiving terminal.
This patent application is currently assigned to LG ELECTRONICS INC.. Invention is credited to Yong-Sang Cho, Kyung Ho Chung, Jin Hun Leem, Dongsu Won.
Application Number | 20110080326 12/779908 |
Document ID | / |
Family ID | 43822798 |
Filed Date | 2011-04-07 |
United States Patent
Application |
20110080326 |
Kind Code |
A1 |
Won; Dongsu ; et
al. |
April 7, 2011 |
DATA SENDING AND RECEIVING TERMINAL
Abstract
According to one embodiment, a data sending and receiving
terminal includes a first body, a second body connected to the
first body, the second body forming an opening and closing
mechanism for the first body, a plurality of first antennas
embedded in the first body, and a plurality of second antennas
embedded in the second body. According to another embodiment, a
method of configuring a data sending and receiving terminal having
a first body and a second body is disclosed. The method includes:
embedding a plurality of first antennas in the first body;
embedding a plurality of second antennas in the second body; and
coupling the first body and the second body such that the second
body has an open state and a closed state relative to the first
body.
Inventors: |
Won; Dongsu; (Seoul, KR)
; Chung; Kyung Ho; (Seoul, KR) ; Leem; Jin
Hun; (Seoul, KR) ; Cho; Yong-Sang; (Seoul,
KR) |
Assignee: |
LG ELECTRONICS INC.
|
Family ID: |
43822798 |
Appl. No.: |
12/779908 |
Filed: |
May 13, 2010 |
Current U.S.
Class: |
343/702 |
Current CPC
Class: |
H04B 1/03 20130101; H04B
1/08 20130101 |
Class at
Publication: |
343/702 |
International
Class: |
H01Q 1/24 20060101
H01Q001/24 |
Foreign Application Data
Date |
Code |
Application Number |
Oct 6, 2009 |
KR |
10-2009-0094610 |
Claims
1. A data sending and receiving terminal comprising: a first body;
a second body connected to the first body, the second body forming
an opening and closing mechanism for the first body; a plurality of
first antennas embedded in the first body; and a plurality of
second antennas embedded in the second body.
2. The terminal of claim 1, further comprising a hinge rotatably
connecting the first body and the second body.
3. The terminal of claim 2, further comprising a USB connector
protruding from the first body.
4. The terminal of claim 3, wherein the second body covers and
uncovers the USB connector by rotating about the hinge.
5. The terminal of claim 4, further comprising an identification
module card port installed in the second body and configured to
receive an identification module card comprising a user identity
module (UIM), a subscriber identity module (SIM), or a universal
subscriber identity module (USIM) and removably insertable into the
identification module card port.
6. The terminal of claim 4, wherein the second body uncovers the
USB connector such that the second body and the first body form an
approximate right angle when the terminal is connected to a USB
interface port of an external information terminal.
7. The terminal of claim 2, wherein: the hinge connects the first
body and the second body at a first end of the first body; and the
plurality of first antennas embedded in the first body are
positioned at a second end of the first body opposite the first
end.
8. The terminal of claim 1, wherein: the plurality of first
antennas embedded in the first body comprise a plurality of first
primary antennas and a plurality of first diversity antennas; the
plurality of first primary antennas comprise more than one of a
Personal Communication Service (PCS) primary antenna for sending
and receiving signals at a PCS frequency, a Code Division Multiple
Access (CDMA)/Digital Cellular Network (DCN)/Wideband CDMA (WCDMA)
primary antenna for sending and receiving signals at a
CDMA/DCN/WCDMA frequency, a Global System for Mobile communication
(GSM) primary antenna for sending and receiving signals at a GSM
frequency, and an Long Term Evolution (LTE)/Ultra Mobile Broadband
(UMB) primary antenna for sending and receiving signals at an
LTE/UMB frequency; and the plurality of first diversity antennas
comprise more than one of a diversity antenna for enhanced High
Rate Packet Data (e-HRPD) for receiving signals at a DCN/PCS
frequency, a diversity antenna for High-Speed Uplink Packet Access
(HSDPA)/High-Speed Uplink Packet Access (HSUPA)/High Speed Packet
Access (HSPA) for receiving signals at a WCDMA frequency, and a
diversity antenna for LTE for receiving signals at an LTE
frequency.
9. The terminal of claim 8, wherein: the plurality of second
antennas embedded in the second body comprise a plurality of second
primary antennas and a plurality of second diversity antennas; the
plurality of second primary antennas comprise more than one of a
PCS primary antenna for sending and receiving signals at a PCS
frequency, a CDMA/DCN/WCDMA primary antenna for sending and
receiving signals at a CDMA/DCN/WCDMA frequency, a GSM primary
antenna for sending and receiving signals at a GSM frequency, and
an LTE/UMB primary antenna for sending and receiving signals at an
LTE/UMB frequency; and the plurality of second diversity antennas
comprise more than one of a diversity antenna for e-HRPD for
receiving signals at a DCN/PCS frequency, a diversity antenna for
HSDPA/HSUPA/HSPA for receiving signals at a WCDMA frequency, and a
diversity antenna for LTE for receiving signals at an LTE
frequency.
10. The terminal of claim 1, wherein the plurality of first
antennas embedded in the first body comprise a broadband monopole
antenna operational at 700 Mhz/850 Mhz/1900 Mhz.
11. The terminal of claim 10, wherein the plurality of second
antennas embedded in the second body comprise a chip antenna and a
monopole antenna operational at 700 Mhz/850 Mhz/1900 Mhz.
12. The terminal of claim 1, wherein: the plurality of second
antennas embedded in the second body are connected to a printed
circuit board within the first body through a flexible printed
circuit board (FPCB) or coaxial cable; and a ground plane of the
plurality of the first antennas embedded in the first body and a
ground plane of the plurality of second antennas embedded in the
second body are separated from each other.
13. A method of configuring a data sending and receiving terminal
having a first body and a second body, the method comprising:
embedding a plurality of first antennas in the first body;
embedding a plurality of second antennas in the second body; and
coupling the first body and the second body such that the second
body has an open state and a closed state relative to the first
body.
14. The method of claim 13, wherein coupling the first body and the
second body comprises rotatably coupling the first body and the
second body via a hinge.
15. The method of claim 14, further comprising providing a USB
connector protruding from the first body.
16. The method of claim 15, wherein the second body is operable to
cover and uncover the USB connector by rotating about the
hinge.
17. The method of claim 16, wherein the second body is operable to
uncover the USB connector such that the second body and the first
body form an approximate right angle when the data sending and
receiving terminal is connected to a USB interface port of an
external information terminal.
18. The method of claim 14, wherein: rotatably coupling the first
body and the second body comprises coupling the first body and the
second body via the hinge at a first end of the first body; and
embedding the plurality of first antennas in the first body
comprises embedding the plurality of first antennas at a second end
of the first body opposite the first end.
19. The method of claim 13, wherein: embedding the plurality of
first antennas in the first body comprises embedding a plurality of
first primary antennas and a plurality of first diversity antennas
in the first body; the plurality of first primary antennas comprise
more than one of a Personal Communication Service (PCS) primary
antenna for sending and receiving signals at a PCS frequency, a
Code Division Multiple Access (CDMA)/Digital Cellular Network
(DCN)/Wideband CDMA (WCDMA) primary antenna for sending and
receiving signals at a CDMA/DCN/WCDMA frequency, a Global System
for Mobile communication (GSM) primary antenna for sending and
receiving signals at a GSM frequency, and an Long Term Evolution
(LTE)/Ultra Mobile Broadband (UMB) primary antenna for sending and
receiving signals at an LTE/UMB frequency; and the plurality of
first diversity antennas comprise more than one of a diversity
antenna for enhanced High Rate Packet Data (e-HRPD) for receiving
signals at a DCN/PCS frequency, a diversity antenna for High-Speed
Uplink Packet Access (HSDPA)/High-Speed Uplink Packet Access
(HSUPA)/High Speed Packet Access (HSPA) for receiving signals at a
WCDMA frequency, and a diversity antenna for LTE for receiving
signals at an LTE frequency.
20. The method of claim 19, wherein: embedding the plurality of
second antennas in the second body comprises embedding a plurality
of second primary antennas and a plurality of second diversity
antennas in the second body; the plurality of second primary
antennas comprise more than one of a PCS primary antenna for
sending and receiving signals at a PCS frequency, a CDMA/DCN/WCDMA
primary antenna for sending and receiving signals at a
CDMA/DCN/WCDMA frequency, a GSM primary antenna for sending and
receiving signals at a GSM frequency, and an LTE/UMB primary
antenna for sending and receiving signals at an LTE/UMB frequency;
and the plurality of second diversity antennas comprise more than
one of a diversity antenna for e-HRPD for receiving signals at a
DCN/PCS frequency, a diversity antenna for HSDPA/HSUPA/HSPA for
receiving signals at a WCDMA frequency, and a diversity antenna for
LTE for receiving signals at an LTE frequency.
Description
[0001] Pursuant to 35 U.S.C. .sctn.119(a), this application claims
the benefit of earlier filing date and right of priority to Korean
Application No. 10-2009-0094610, filed on Oct. 6, 2009, the
contents of which are hereby incorporated by reference herein in
its entirety.
BACKGROUND
[0002] 1. Field
[0003] Embodiments of the present invention generally relate to a
data sending and receiving terminal and, in particular, to a data
sending and receiving terminal which is connected to external
information terminals through a wired/wireless interface and sends
and receives data by using multi-input multi-output technology.
[0004] 2. Discussion of the Related Art
[0005] Mobile communication technology is evolving to the 4th
generation mobile communications. A core technology of the 4th
generation mobile communication technology is multi-input
multi-output (MIMO) technology. MIMO technology utilizes a multiple
antenna signal processing scheme which sends and receives data by
using multiple antennas in a mobile environment.
[0006] By sending and receiving data simultaneously through a
plurality of antennas, MIMO technology implements broadband
wireless data communication and significantly enhances data sending
and receiving speed, thereby increasing data transfer rate. Based
on MIMO technology, if signals are transmitted through N antennas
arranged in the sending side along with N antennas arranged in the
receiver side, an N times increase in transfer rate can be
obtained.
[0007] In particular, if MIMO technology is used together with OFDM
(Orthogonal Frequency Division Multiplexing), which has been
incorporated into LTE (Long Term Evolution) technology representing
the 4th generation mobile communication technology, high speed data
transmission and high data capacity can be obtained, by which a
communication environment optimized for multimedia services can be
realized. OFDM technology, which employs a scheme that assigns data
into multiple frequency and time ranges, can divide a single
channel into several sub-channels; by allowing overlap between the
sub-channels, bandwidth is saved and frequency interference can be
minimized as the frequency band is divided into hundreds of
sub-bands.
[0008] Demand for small sized (or smaller-sized) devices for
sending and receiving data is rapidly growing, where the device is
attached to an information terminal, such as a computer or a mobile
phone, and relays data between the information terminal and a
mobile communication network or between the information terminal
and a wireless Internet network. However, MIMO technology requires
multiple antennas and cannot be easily applied to a small sized
device for sending and receiving data because of a coupling problem
among the antennas and limited dimensions (or capacity) for
installing multiple antennas.
[0009] Recently, a new LTE frequency band lower than the
pre-existing 700 MHz frequency band of 3GPP bands 12, 13, and 17
has been assigned. Accordingly, the ground plane of an antenna,
namely, the size of a printed circuit board (PCB), should be
enlarged. Due to the limited dimensions of a small sized terminal,
however, it is not easy to design an antenna ground plane
appropriate for the new LTE frequency band.
SUMMARY
[0010] Embodiments of the present invention are described with
reference to a data sending and receiving terminal, where the
terminal is portable and employs multi-input and multi-output
technology.
[0011] According to one embodiment, a data sending and receiving
terminal includes a first body, a second body connected to the
first body, the second body forming an opening and closing
mechanism for the first body, a plurality of first antennas
embedded in the first body, and a plurality of second antennas
embedded in the second body.
[0012] According to another embodiment, a method of configuring a
data sending and receiving terminal having a first body and a
second body is disclosed. The method includes: embedding a
plurality of first antennas in the first body; embedding a
plurality of second antennas in the second body; and coupling the
first body and the second body such that the second body has an
open state and a closed state relative to the first body.
BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The above and other aspects and features of the present
disclosure will become more apparent upon consideration of the
following description of embodiments, taken in conjunction with the
accompanying drawing figures:
[0014] FIG. 1 illustrates a block diagram of a data sending and
receiving terminal according to one embodiment;
[0015] FIGS. 2 and 3 illustrate perspective views of a data sending
and receiving terminal according to one embodiment;
[0016] FIG. 4A illustrates a front view of internal portions of a
data sending and receiving terminal according to one
embodiment;
[0017] FIG. 4B illustrates a side view of internal portions of the
data sending and receiving terminal of FIG. 4A;
[0018] FIG. 4C illustrates a rear view of internal portions of the
data sending and receiving terminal of FIG. 4A;
[0019] FIG. 5 illustrates a connection configuration of a first
body and a second body of a data sending and receiving terminal
according to one embodiment;
[0020] FIG. 6 illustrates a connection configuration of a first
body and a second body of a data sending and receiving terminal
according to one embodiment; and
[0021] FIG. 7 illustrates a perspective view of an external
information terminal to which a data sending and receiving terminal
according to one embodiment is connected.
DETAILED DESCRIPTION
[0022] In the following detailed description, reference is made to
the accompanying drawing figures which form a part hereof, and
which show by way of illustration specific embodiments of the
invention. It is to be understood by those of ordinary skill in
this technological field that other embodiments may be utilized,
and structural, electrical, as well as procedural changes may be
made without departing from the scope of the present invention.
Wherever possible, the same reference numbers will be used
throughout the drawings to refer to the same or similar parts.
[0023] A mobile terminal according to various embodiments will be
described in more detail with reference to the accompanying
drawings. The use herein of a suffix such as "module" or "unit" is
applied merely for ease of description, and the suffix itself does
not give any special meaning or function. Therefore, it should be
noted that the suffix "module" or "unit" may be interchangeably
used relative to each other.
[0024] A data sending and receiving device according to various
embodiments may include a data card of a USB (Universal Serial Bus)
dongle type, a dongle terminal (or a broadband wireless adaptor),
an MP3 player, a PMP (Portable Media Player), a mobile phone, a
smart phone, a PDA (Personal Digital Assistant), a PMP (Portable
Multimedia Player), and/or a navigation terminal.
[0025] FIG. 1 illustrates a block diagram of a data sending and
receiving terminal according to one embodiment. With reference to
FIG. 1, the data sending and receiving terminal 100 includes a
control module 101, a communication module 102, an interface module
103, a memory 104, an identification module 105, and a power module
106.
[0026] The control module 101 is connected to an external
information terminal such as a personal computer or a notebook
computer (see, for example, FIG. 7) through the interface module
103 and provides the communication module 102 with data from the
information terminal. The control module 101 stores data from the
external information terminal into the memory 104, reads out data
stored in the memory 104, and provides the data for (or to) the
communication module 102. Also, the control module 101 checks data
received from the communication module 102 for errors, transforms
the checked data into a signal complying with specifications
requested by the external information terminal, and transfers the
signal into the interface module 103.
[0027] The communication module 102 may include more than one
module which enables wireless communication between the data
sending and receiving terminal 100 and a wireless communication
system or between the data sending and receiving terminal 100 and a
network to which the data sending and receiving terminal 100
belongs. For example, the communication module 102 may include a
mobile communication module, a broadcasting receiver module, a
wireless Internet module, a short range communication module,
and/or a location information module. These communication modules
can be adjusted selectively by a manufacturer.
[0028] According to one embodiment, the communication module 102
modulates data received from the control module 101 according to
mobile communication specifications, transmits the modulated data
to base stations of a mobile communication network through more
than one primary antenna (e.g., primary antenna 107_1, . . . ,
primary antenna 107_N, where N is a positive integer) and more than
one diversity antenna (e.g., diversity antenna 108_1, . . . ,
diversity antenna 108_N), demodulates data received from the base
stations of the mobile communication network, and provides the
demodulated data to the control module 101.
[0029] The mobile communication specifications may include CDMA
(Code Division Multiple Access), WCDMA (Wideband CDMA), HSPA (High
Speed Packet Access), CDMA2000, HRPD (High Rate Packet Data),
and/or UMB (Ultra Mobile Broadband). The mobile communication
specifications may further include those of the 4th generation
mobile communication network, for example, 3GPP LTE (Long Term
Evolution) specifications, and 3GPP2 UMB (Ultra Mobile Broadband)
specifications.
[0030] The primary antennas 107_1, . . . , 107_N may include a PCS
(Personal Communication Service) primary antenna which sends and
receives signals at a PCS frequency, a CDMA/DCN (Digital Cellular
Network)/WCDMA primary antenna which sends and receives signals at
a CDMA/DCN/WCDMA frequency, a GSM (Global System for Mobile
communication) primary antenna which sends and receives signals at
a GSM frequency, an LTE/UMB primary antenna which sends and
receives signals at an LTE/UMB frequency, and a combination thereof
(e.g., a combination totaling two or more of the above-noted
antennas). The diversity antennas 108_1, . . . , 108_N may include
a diversity antenna for e-HRPD which receives signals at a PCS
frequency, a diversity antenna for HSDPA (High-Speed Downlink
Packet Access)/HSUPA (High-Speed Uplink Packet Access)/HSPA which
receives signals at a WCDMA frequency, a diversity antenna for LTE
which receives signals at an LTE frequency, and a combination
thereof (e.g., a combination totaling two or more of the
above-noted antennas).
[0031] Each antenna can additionally utilize a GPS (Global
Positioning System) antenna for multi-module implementation. The
data sending and receiving terminal 100 may further include a
broadcasting receiving antenna and a short range communication
antenna as well as primary antennas 107_1, . . . , 107_N and
diversity antennas 108_1, . . . , 108_N.
[0032] A broadcasting receiving module, which that may be included
in the communication module 102, receives broadcasting signals
and/or broadcasting-related information from an external
broadcasting management server through a broadcasting receiving
antenna. Such signals and information may be received over a
broadcasting channel that may include a satellite channel and/or a
terrestrial channel. A broadcasting receiving module may receive
digital broadcasting signals from a digital broadcasting system
such as DMB-T (Digital Multimedia Broadcasting-Terrestrial), DMB-S
(Digital Multimedia Broadcasting-Satellite), MediaFLO (Media
Forward Link Only), DVB-H (Digital Video Broadcast-Handheld), and
ISDB-T (Integrated Services Digital Broadcast-Terrestrial).
[0033] The broadcasting management server may be either a server
which generates and transmits broadcasting signals and/or
broadcasting-related information or a server which receives
previously generated broadcasting signals and/or
broadcasting-related information and provides them to terminals. In
addition to TV broadcasting signals, radio broadcasting signals,
and data broadcasting signals, the broadcasting signals may further
include broadcasting signals including data broadcasting signals
combined with TV broadcasting signals or radio broadcasting
signals.
[0034] Broadcasting-related information may be information about
broadcasting channels, broadcasting programs, or broadcasting
service providers. Broadcasting-related information may be provided
through a mobile communication network with broadcasting-related
information received by the communication module 102.
Broadcasting-related information can be produced in the form of an
EPG (Electronic Program Guide) of a DMB (Digital Multimedia
Broadcasting) system or an ESG (Electronic Service Guide) of a
DVB-H (Digital Video Broadcast-Handheld) system.
[0035] A wireless Internet module, which may be included in the
communication module 102, is connected to a wireless Internet
network through WLAN (Wireless LAN), Wi-Fi, Wibro (Wireless
broadband), Wimax (World Interoperability for Microwave Access), or
HSDPA (High Speed Downlink Packet Access). A short range
communication module, which may be included in the communication
module 102, sends and receives data based on short range
communication specifications of Bluetooth.TM., RFID (Radio
Frequency Identification), IrDA (Infrared Data Association), UWB
(Ultra Wideband), or ZigBee.TM.. A location information module,
which may be included in the communication module 102, may be
implemented by a GPS module.
[0036] According to one embodiment, the interface module 103
receives data or power from the external information terminal and
provides the data or power to individual circuit modules inside the
data sending and receiving terminal 100; the interface module 103
also transmits data from the control module 101 to the external
information terminal. The interface module 103 controls a
wired/wireless connection of the interface module 103 and the
external information terminal as well as an interface
controller.
[0037] An interface controller includes a wired interface
controller and/or a wireless interface controller. For example, an
interface controller may include at least one of a USB (Universal
Serial Bus) controller, a UART (Universal Asynchronous Receiver and
Transceiver) controller, a PCMCIA (Personal Computer Memory Card
International Association) controller, and an RS232 controller.
[0038] The interface module 103 may include a wired/wireless data
interface, a memory card port, and an identification module card
port. The wired/wireless data interface may include a USB port, a
UART port, a PCMCIA port, and an RS232 port. The USB port may
include a USB connector.
[0039] An identification module may be inserted into the
identification module card port of the interface module 103 in a
removable manner and thus can be connected to the data sending and
receiving terminal 100. When the data sending and receiving
terminal 100 is connected to the external information terminal
through a wired/wireless data interface and a request for
authentication related to electronic commerce or electronic banking
is received from the external information terminal, the control
module 101 reads out information stored in the identification
module 105 and transfers the data to the external information
terminal.
[0040] The identification module may include a user identity module
(UIM), a subscriber identity module (SIM), and a universal
subscriber identity module (USIM). The identification module may be
manufactured in the form of a smart card and store information such
as a phone number, telephone call information, and billing
information.
[0041] The power module 106 provides power for circuit modules
which require power inside the data sending and receiving terminal
100. In embodiments where power may be provided by the external
information terminal through the interface module 103, the power
module 106 may or may not be required.
[0042] FIGS. 2 and 3 illustrate perspective views (from different
directions) of an exterior of a data sending and receiving terminal
100 according to one embodiment. The exterior of the terminal 100
is not limited to that shown in FIGS. 2 and 3, and it should be
understood that the exterior can be modified in various ways.
[0043] With reference to FIGS. 2 and 3, the data sending and
receiving terminal 100 includes a first body 10 and a second body
20, which are joined together via a hinge 40. The first body 10 and
the second body 10 are rotatably joined via the hinge 40. A USB
connector 30 is formed in the first body 10.
[0044] The first body 10 includes a case (e.g., a casing, housing,
or cover) on which an exterior image may be displayed. The first
body 10 may be divided into a front case (or front casing) and a
rear case (or rear casing). According to one embodiment, various
electronic components for realizing circuit blocks of FIG. 1 are
installed in an inner volume formed between the front case and the
rear case of the first body 10. More than one primary antenna
(e.g., primary antennas 107_1, 107_N of FIG. 1) and more than one
diversity antenna (e.g., diversity antennas 108_1, 108_N of FIG. 1)
are embedded in the first body 10.
[0045] The second body 20 can be divided into a front case (or
front casing) and a rear case (or rear casing). An inner volume
formed between the front case and the rear case of the second body
20 incorporates more than one primary antenna (e.g., primary
antenna 107_1 of FIG. 1) and more than one diversity antenna (e.g.,
diversity antenna 108_1 of FIG. 1). The second body 20 can be
operated to cover and uncover the USB connector 30 via the hinge
40. An identification module 105 card can be connected to the
second body 20 in a removable manner.
[0046] The cases of the first and the second body 10, 20 can be
manufactured by injection molding of synthetic resin or
manufactured to have metallic material such as steel use stainless
(SUS) (or stainless steel) or titanium (Ti).
[0047] The USB connector 30 protrudes from the first body 10. The
data sending and receiving terminal 100 may perform data
communication with an external information terminal through the USB
connector 30 which is connected to a USB interface of the external
information terminal. If the data sending and receiving terminal
100 and the external information terminal utilize a wireless
interface, a wireless interface means can be installed in the first
body 10 instead of (or in addition to) the USB connector 30.
[0048] FIGS. 4A to 4C show internal portions of a data sending and
receiving terminal 100 according to one embodiment. FIG. 4A
illustrates a front view of internal portions of the terminal 100,
FIG. 4B illustrates a side view of internal portions of the
terminal, and FIG. 4C illustrates a rear view of internal portions
of the terminal.
[0049] With reference to FIGS. 4A to 4C, more than one printed
circuit board (PCB) 51, 52 are embedded in a first body 10, and
more than one primary antenna (e.g., primary antennas 107_1, 107_N
of FIG. 1) and more than one diversity antenna (e.g., diversity
antennas 108_1, 108_N of FIG. 1) are installed in one of the
printed circuit boards 51, 52. Antennas embedded in the first body
10 may be realized by broadband monopole antennas operational at
700 Mhz/850 Mhz/1900 Mhz.
[0050] According to one embodiment, most of the circuit blocks
illustrated in FIG. 1 are mounted in the printed circuit boards 51,
52. For example, the control module 101, the communication module
102, the interface module 103, the memory 104, and the power module
106 may be mounted in the printed circuit boards 51, 52. If the
printed circuit board 51, 52 is divided into more than two parts,
the printed circuit boards 51, 52 may be connected electrically
through a flexible PCB (FPCB) connector.
[0051] According to one embodiment, more than one primary antenna
(e.g., primary antennas 107_1, 107_N) and more than one diversity
antenna (e.g., diversity antennas 108_1, 108_N) are embedded in the
second body 20, and an identification module card port, through
which an identification module 105 card is inserted in a removable
manner, is installed in the second body 20. Each antenna embedded
in the second body 20 may be a chip antenna or a monopole antenna
operational at 700 Mhz/850 Mhz/1900 Mhz.
[0052] Also, with reference to FIG. 4A, FPCBs 61, 62 connect the
antennas of the second body 20 and the identification module 105
card electrically to the PCBs 51, 52 of the first body 10. The
FPCBs 61, 62 are embedded in the second body 20.
[0053] Antennas embedded in the second body 20, which are connected
to the first body 10 through FPCBs 61, 62 or a coaxial cable (not
shown), may obtain power from the first body 10. To facilitate the
antenna embedded in the second body 20 obtaining power from the
first body 10 through the FPCB or a coaxial cable, a ground plane
of the antennas embedded in the first body 10 and a ground plane of
the antennas embedded in the second body 20 are separated from each
other, thereby improving isolation between the antennas.
[0054] The second body 20 of the sending and receiving terminal 100
can be connected to the first body 10 to form an opening and
closing mechanism for the first body 10 (see, for example, FIGS. 5
and 6). As shown in FIGS. 5 and 6, the second body 20 may be
connected to the first body 10 via any of various connection
configurations--for example, a slide type, a swivel type, and/or a
swing type connector.
[0055] With reference to FIG. 7, the data sending and receiving
terminal 100 can be connected to an external information terminal
200 through a USB interface. When the data sending and receiving
terminal 100 is connected to the external information terminal 200
according to a particular embodiment, it may be desirable for the
second body 20 to rotate around (or about) the first body 10
through the hinge 40 such that an external surface of the second
body 20 and an adjacent external surface of the first body 10 form
an angle of approximately 90.degree..
[0056] This configuration addresses a mechanical constraint that
the second body 20 should be opened 90.degree. from the first body
10 to connect the data sending and receiving terminal 100 to the
external information terminal 200 through the USB interface. This
configuration also addresses the situation that, when the first
body 10 and the second body 20 form a right angle to each other,
antennas embedded in the first body 10 and antennas embedded in the
second body 20 form an orthogonal arrangement and achieve polarity
diversity, thereby providing excellent (or at least more optimal)
MIMO quality. If an antenna embedded in the second body 20 includes
a patch type chip antenna, isolation among the antennas embedded in
the first body 10 and antennas embedded in the second body 20 is
improved and, thus, interference among the antennas can be
minimized (or at least reduced).
[0057] According to various embodiments, the data sending and
receiving terminal 100 is manufactured to have a compact size to
increase portability. If primary antennas (e.g., primary antennas
107_1, 107_N of FIG. 1) and diversity antennas (e.g., diversity
antennas 108_1, 108_N of FIG. 1) are arranged to implement MIMO
technology in the compact sized data sending and receiving terminal
100 for sending and receiving data, a coupling effect between the
primary and diversity antennas may be generated due to the spatial
positioning of the antennas. To minimize (or reduce) this coupling
effect between the antennas, an isolation distance between the
primary antennas (e.g., primary antennas 107_1, 107_N) and the
diversity antennas (e.g., diversity antennas 108_1, 108_N) is
increased. For example, with reference to FIG. 4C, diversity
antennas 108_1 and 108_2 are embedded in the second body 20, and
primary antenna 107_1 is arranged in the first body 10 at an end of
the first body opposite to the end of the first body at which the
hinge 40 is located.
[0058] As described in detail above with reference to various
embodiments, by embedding antennas in the first body and embedding
antennas in the second body that forms an opening and closing
mechanism for the first body, MIMO technology may be implemented.
Furthermore, a coupling effect between antennas in a compact sized
portable terminal may be reduced.
[0059] The foregoing embodiments and advantages are merely
exemplary and are not to be construed as limiting the present
invention. The present teaching can be readily applied to other
types of apparatuses and processes. The description of embodiments
of the present invention is intended to be illustrative, and not to
limit the scope of the claims. Many alternatives, modifications,
and variations will be apparent to those skilled in the art.
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